| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e18a8aa8fdf128b6f1f112b135e7a62f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-28 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-88
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-882 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-267
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-08 |
| filingDate |
2020-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8adaeb1fdd9240d034c32ed5ee7a8559
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_924f52d2a1a1bad480f52e16a33bdada
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_19ff3a91315782a1d74285e93c68bbce
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_17ee3de424519dd24dbc383fd8222181
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0efee4b50971c5e8031c90b36232a7f5 |
| publicationDate |
2021-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2021055018-A1 |
| titleOfInvention |
Screening method for friction reducer precipitation |
| abstract |
A method of preparing a fracturing fluid comprising: preparing or providing an aqueous fluid containing iron ions; screening a plurality of friction reducers against the aqueous fluid wherein the plurality of friction reducers are anionic, cationic, nonionic, amphoteric, or combinations thereof; selecting at least one friction reducer from the plurality of friction reducers based at least in part on the step of screening; and preparing a fracturing fluid including the at least one friction reducer. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11447691-B1 |
| priorityDate |
2019-09-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |